Appearance of ungovernable and/or unobservable modes
Governability and observability of uncertain linear systems
Article REF: S7135 V2
Appearance of ungovernable and/or unobservable modes
Governability and observability of uncertain linear systems

Author : Jean-Marc BIANNIC

Publication date: May 10, 2019 | Lire en français

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2. Appearance of ungovernable and/or unobservable modes

2.1 Single-input, single-output systems

In the previous introductory example, the appearance of an ungovernable (or unobservable) mode was linked to a simplification phenomenon between pole and zero of the cascaded subsystems, as can be seen by rewriting the transfer function of the S 1 subsystem in the form :

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